Improvement in tighteners for elevator-belts



UNITED STATES PATENT. QFFIGE.

PETER H. ZAOHARIAS AND JOHN SWIFT, OF ANN ARBOR, MICHIGAN.

IMPROVEMENT IN TIGHTENERS FOR ELEVATOR-BELTS.

Specification forming part of Letters Patent N0- 73,252, dated February8, 1876; application filed December 27, 1875.

To all whom it may concern:

Be it known that we, PETER H. ZAGHARIAS and JOHN M. SWIFT, of Ann Arbor,in the county of Washtenaw and State of Michigan, have invented a newand useful Improvement in Tighteners for Elevator-Belts, of which thefollowing is a specification:

Figure 1 is a side View of our improved belttightener. Fig. 2 is a frontView of'the same. Fig. 3 represents a modified form of the clevis orloop. Fig. 4 is an edge view and a side view of the extension-hooks.

Similar letters of reference indicate corresponding parts.

The objectof this invention is to furnish an improved implement fortightening elevatorbelts in flour-mills, and for other similar uses,which shall be simple in construction, convenient in use, and effectivein operation, enabling a single man to tighten a belt, which heretoforehas required two or three, and with less liability to injure the belt.

The invention will first be described in connection with drawing, andthen pointed out in the claim.

A represents the elevator-box; B, the elevator-belt, and O the buckle. Dis a lever, the forward end of which is made wide, and

to its side edges, near its end, are attached two pins, upon which arebooked the ends of the clevis or loop E, which is made of such a lengthas to clamp the belt against the end of the lever. F is a swingingclamp, the upper edge of which is hinged to the lever D, at a littledistance from its end, by eyebolts or other suitable means. To the sideedges of the swinging clamp F, near its free .end, are attached twopins, upon which are hooked the ends of the clevis or loop G, which ismade of such a length as'to clamp the belt between it and the end of thesaid swinging clamp F.

In using the'device, remove the clevis E, pass it around the belt B alittle above the buckle O, and again hook it upon its pins, with thehandle of the lever D hanging downward. Then pass the tongue of the beltB through the clevis G, and raise the handle of the lever D, which willdraw the tongue of the belt B through the buckle O, and allow the buckleO to be buckled into the next holes. If the belt is not tight enough thefree end of the lever D is lowered, the clevis E is slipped up upon thebelt B, and the operation is repeated.

In case the belt B is wider than the lever, clevises H, with sideextensions, as shown in Fig. 3, may be used. V

In case the belt is not long enough for its tongue to be grasped by theclevis G of the swinging clamp F, the S-hooks I are used, which arehooked into the clevis G and into the buckle O, and the belt istightened until the end of file tongue of the belt B can he passedthrough the buckle O and be buckled.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent- The belt-tightener consisting of a lever, D,having an end clevis, E, and a swinging bar, F, having clevis G, toenable it to tighten a belt provided with a buckle at one end and aseries of holes at the other, in the manner specified.

PETER H. ZAOHARIAS. JOHN M. SWIFT. Witnesses:

RICHARD BEAHAN, FRANK It. BEAHAN.

